<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>HolyGrail</title>
    <link rel="stylesheet" href="圣杯布局.css">
</head>

<body>
    <header>#header</header>
    <div class="body">
        <main class="content">#conter</main>
        <nav class="left">#left</nav>
        <aside class="right">#right</aside>
    </div>
    <footer>#footer</footer>
</body>

</html>